Player grand piano.



J. HATTEMER.

PLAYER GRAND PIANO.

APPLICATION FILED 11017.7, 190B.

Patented May 23, 1911.

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J. HATTEMER.

PLAYER GRAND PIANO.

APPLICATION FILED NOV. '1, 190a.

Patented May 23, 1911.

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JUSTUS HATTEMER, OF WEST NEW YORK, NEW JERSEY, ASSIGNOR 'lO HARDMAN,PECK & COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

PLAYER GRAND PIANO.

To all whom it may concern:

Be it known that I, JUsTUs HATTEMER, a citizen of the United States,residing at West New York, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements in PlayerGrand Pianos; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to player grand pianos, and has for an object toprovide accommodation for the operative parts of a piano which may beconveniently moved to give access to the action.

A further object of the invention is to provide in a player grand pianoa tracker bar communicating with the usual tubes, flexible or otherwise,which said tubes communicate directly with separable blocks hav ingpassages formed therein and the latter blocks communicating by means offlexible tubing with the action.

With these and other objects in view, the invention comprises certainnovel constructions, combinations and arrangements of parts, as will behereinafter fully described and claimed.

In the drawings :Figure 1 is a view of the front of a conventional grandpiano showing the operative parts in elevation. Fig. 2 is a view inelevation of the front of a conventional grand piano showing themechanism swung upwardly upon its hinges and the blocks separated. Fig.3 is a view in transverse section of the blocks secured together inoperative position.

Like characters of reference designate corresponding parts throughoutthe several views.

As shown in the drawings the controlling parts of the player piano,consisting of the track bar 10, music roll 11, motor 12, and other partshereinafter mentioned, are rigidly mounted upon a board 13, hinged tothe frame of the piano so that the said board with the parts connectedthereto may be raised as shown in Fig. 2. Upon the board Specificationof Letters Patent.

Application filed November 7, 1908.

Patented May 23, 1911.

Serial No. 461,571.

in the figures is also shown the tempo regulator at 1 1 and with tubes,flexible or other wise, shown at 15, running from the tracker bar 10 toa block 16 and similar tubes 17 running from the tracker bar 10 to theblock 18. The block 18, as shown in Fig. 3, is provided with openings 19communicating with the tubes and bent at right or other angles tocommunicate with openings 20 formed in blocks 21 and 22, respectively.From the blocks 21 and 22 tubes 23 and 24 lead, respectively, to thediiferent sections of the divided action so that when the blocks 16 and17 and the blocks 18 and 22 are secured together in any approved manneras by the screws 25, the holes 19 and 20 register so that communicationis formed from the tracker bar 10 through the blocks to the action. Itwill be noted that the blocks above mentioned are the only portionsconnecting the operating mechanism withthe action so that the simplereleasing of the screws will permit the operating mechanism to be raisedwith the board 13 to the position shown at Fig. 2 which permits accessto the action beneath such board.

In addition to the tracker bar 10 and its associate winding andre-winding spools carried by the hinged board 13, such board alsocarries a motor 12, and means for transmitting motion from such motor tothe music rolls, and also upon the opposite side carries a temporegulator 14 with a link 26 connecting such tempo regulator with a lever27 which extends through the board at the base of the hinged board 13,and is disposed adjacent the winding roll and provided with a wing 28 tobe manipulated by the operator. A link 29 also connects the winding andrewinding mechanism with a similar lever 30 provided with a wing 31similarly disposed and all of such mechanism is moved with the hingedboard 13 upon its hinges, also manuals 32 connecting through tubes 33with expression devices.

What I claim is In a player piano abody containing player pneumatics, akey bed, a board hinged above the key bed, a tracker bar, music rolls, a

motor and expression device carried by the to control the music rolls,motor and eX- 10 board, separable blocks one part carried by pressiondevice.

the board and the other part on the body of In testimony whereof I aflixmy signature the player, tubesfleading from the tracker in presence oftwo Witnesses.

bar to sections 0" separable blocks carried NH on the board, tubesleading from the sec- JUSTUS HAllEMER' tions of separable blocks carriedon the body Witnesses: to the player pneumaties and manuals car- E. A.Sormrrr'r, ried by the board above the key bed adapted JOHN E. CAPLEAS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, 1). G.

